Manual brakes

I have but not in a Pantera. I presume that is what you are asking about?

I tried running without a booster but the pedal effort was just too high. I tried different M/C sizes too but that didn't help. The problem is, the OEM brake pedal is too short, so you don't get enough leverage. SACC makes a Wilwood pedal setup, that uses longer pedals for more leverage. I understand that setup is OK, without a booster, as far as pedal effort is concerned.

I just installed this with Porterfield pads in the OEM front calipers. At the rear I have Brembo 4 pistons calipers and I have Ferrodo DS 1.11 pads. Even with the original pedal the effort is acceptable, you obviously have to press harder than with the brake servo, but it is very correct.
The master cylinders have a diameter of 5/8'' and 11/16''

This was a nice solution. Few have driven anything with manual brakes these days so they do not know what to expect effort wise.

I once test drove a Pantera with Weber carbs that were not working well and the brake booster was not getting enough vacuum from the plumbing for the individual intake runners.  The brakes themselves were working fine but without power assist it was not a good experience.  Based on this test drive, manual brakes on a Pantera are not for me.  It might be better with Rene's setup.  There are now good electric vacuum pumps that will operate the brake booster.

Sketchy - I think that describes it the best!

I want to be able to modulate the brake pressure with ease especially if I want to go fast! Heel/toe driving will be impossible!
it will be like performing surgery and using an ax instead of a scalpel!
it may work in 1/4 mile straight line drag racing but that’s it!

twice as bad in a car with weight bias to the rear….

but that’s just me…

Yes, my '72 Pantera.
On Friday, May 24, 2024 at 04:51:02 PM EDT, The De Tomaso Forums <alerts@crowdstack.com> wrote:


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New Reply By panteradoug
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| Manual brakesReply by panteradoug
I have but not in a Pantera. I presume that is what you are asking about?

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Good information. Thanks.
On Friday, May 24, 2024 at 06:13:26 PM EDT, The De Tomaso Forums <alerts@crowdstack.com> wrote:


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New Reply By davidnunn
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| Manual brakesReply by davidnunn
I tried running without a booster but the pedal effort was just too high. I tried different M/C sizes too but that didn't help. The problem is, the OEM brake pedal is too short, so you don't get enough leverage. SACC makes a Wilwood pedal setup, that uses longer pedals for more leverage. I understand that setup is OK as far as pedal effort is concerned.

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Very nice. Thanks.
On Friday, May 24, 2024 at 07:34:25 PM EDT, The De Tomaso Forums <alerts@crowdstack.com> wrote:


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New Reply By rene4406R
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| Manual brakesRReply by rene4406
I just installed this with Porterfield pads in the OEM front calipers. At the rear I have Brembo 4 pistons calipers and I have Ferrodo DS 1.11 pads. Even with the original pedal the effort is acceptable, you obviously have to press harder than with the brake servo, but it is very correct.
The master cylinders have a diameter of 5/8'' and 11/16''




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Thanks.
On Saturday, May 25, 2024 at 01:41:02 AM EDT, The De Tomaso Forums <alerts@crowdstack.com> wrote:


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New Reply By stevebuchanan
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| Manual brakesReply by stevebuchanan
I once test drove a Pantera with Weber carbs that were not working well and the brake booster was not getting enough vacuum from the plumbing for the individual intake runners.  The brakes themselves were working fine but without power assist it was not a good experience.  Based on this test drive, manual brakes on a Pantera are not for me.  It might be better with Rene's setup.  There are now good electric vacuum pumps that will operate the brake booster.

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Thanks.
On Saturday, May 25, 2024 at 10:22:01 AM EDT, The De Tomaso Forums <alerts@crowdstack.com> wrote:


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New Reply By LeMans850i
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| Manual brakesReply by LeMans850i
Sketchy - I think that describes it the best!

you want to be able to modulate the brake pressure with ease especially if you want to go fast! Heel/toe driving will be impossible!
it will be like performing surgery and using a ax instead of a scalpel!
it may work in 1/4 mile straight line drag racing but that’s it!

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